scholarly journals Inorganic Nanoparticles Applied for Active Targeted Photodynamic Therapy of Breast Cancer

Pharmaceutics ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 296 ◽  
Author(s):  
Hanieh Montaseri ◽  
Cherie Ann Kruger ◽  
Heidi Abrahamse

Photodynamic therapy (PDT) is an alternative modality to conventional cancer treatment, whereby a specific wavelength of light is applied to a targeted tumor, which has either a photosensitizer or photochemotherapeutic agent localized within it. This light activates the photosensitizer in the presence of molecular oxygen to produce phototoxic species, which in turn obliterate cancer cells. The incidence rate of breast cancer (BC) is regularly growing among women, which are currently being treated with methods, such as chemotherapy, radiotherapy, and surgery. These conventional treatment methods are invasive and often produce unwanted side effects, whereas PDT is more specific and localized method of cancer treatment. The utilization of nanoparticles in PDT has shown great advantages compared to free photosensitizers in terms of solubility, early degradation, and biodistribution, as well as far more effective intercellular penetration and uptake in targeted cancer cells. This review gives an overview of the use of inorganic nanoparticles (NPs), including: gold, magnetic, carbon-based, ceramic, and up-conversion NPs, as well as quantum dots in PDT over the last 10 years (2009 to 2019), with a particular focus on the active targeting strategies for the PDT treatment of BC.

2018 ◽  
Vol 512 ◽  
pp. 249-259 ◽  
Author(s):  
Paula García Calavia ◽  
Isabelle Chambrier ◽  
Michael J. Cook ◽  
Alan H. Haines ◽  
Robert A. Field ◽  
...  

Nanoscale ◽  
2020 ◽  
Vol 12 (26) ◽  
pp. 14061-14067 ◽  
Author(s):  
Huan Lu ◽  
Xinpeng Jiang ◽  
Yanyan Chen ◽  
Ke Peng ◽  
Yiming Huang ◽  
...  

Ir(tiq)2ppy nanoparticles are prepared to achieve water solubility and mitochondria-targeting ability with high PDT efficiency to MCF-7 breast cancer cells under white light irradiation.


2011 ◽  
Vol 10 (5) ◽  
pp. 822 ◽  
Author(s):  
Tanya Stuchinskaya ◽  
Miguel Moreno ◽  
Michael J. Cook ◽  
Dylan R. Edwards ◽  
David A. Russell

2018 ◽  
Vol 18 (8) ◽  
pp. 1138-1147 ◽  
Author(s):  
Esra Metin ◽  
Pelin Mutlu ◽  
Ufuk Gündüz

Background: Although conventional chemotherapy is the most common method for cancer treatment, it has several side effects such as neuropathy, alopecia and cardiotoxicity. Since the drugs are given to body systemically, normal cells are also affected, just like cancer cells. However, in recent years, targeted drug delivery has been developed to overcome these drawbacks. Objective: The aim of this study was targeted co-delivery of doxorubicin (Dox) which is an anticancer agent and D-α-Tocopherol polyethylene glycol 1000 succinate (vitamin E TPGS or simply TPGS) to breast cancer cells. For this purpose, Magnetic Nanoparticles (MNPs) were synthesized and coated with Oleic Acid (OA). Coated nanoparticles were encapsulated in Poly Lactic-co-Glycolic Acid (PLGA) and TPGS polymers and loaded with Dox. The Nanoparticles (NPs) were characterized by Fourier Transform Infrared (FTIR) spectroscopy, zetapotential analysis, Dynamic Light Scattering (DLS) analysis, Thermal Gravimetric Analysis (TGA) and Scanning Electron Microscope (SEM) analysis. Results: The results showed that NPs were spherical, superparamagnetic and in the desired range for use in drug targeting. The targetability of NPs was confirmed. Moreover, TPGS and Dox loading was shown by TGA and FTIR analyses. NPs were internalized by cells and the cytotoxic effect of drug loaded NPs on sensitive (MCF-7) and drug-resistant (MCF-7/Dox) cells were examined. It was seen that the presence of TPGS increased cytotoxicity significantly. TPGS also enhanced drug loading efficiency, release rate, cellular internalization. In MCF- 7/Dox cells, the drug resistance seems to be decreased when Dox is loaded onto TPGS containing NPs. Conclusion: This magnetic PLGA nanoparticle system is important for new generation targeted chemotherapy and could be used for breast cancer treatment after in vivo tests.


Author(s):  
Erem Ahmetali ◽  
Pinar Sen ◽  
N. Ceren Süer ◽  
Tebello Nyokong ◽  
Tarik Eren ◽  
...  

Author(s):  
Eduardo Ribeiro Almeida ◽  
Helio F. Dos Santos ◽  
Priscila V. S. Z. Capriles

Cisplatin (cddp)-based chemotherapy is one of the most effective therapeutic alternatives for breast cancer treatment, the most common form of cancer, despite the severe side effects related to the high...


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